[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] RE: [Xen-devel] RE: regression from IRQ handling changes?
Okay, I will have a look about it. As you said, it should be easy to fix it. Xiantao Keir Fraser wrote: > It isn't hard to boot UP and with APIC disabled to test this case. I > would prefer to contineu to support it for a while longer, so please > do take a look at it Xiantao. > > Thanks, > Keir > > On 14/09/2009 07:59, "Jan Beulich" <JBeulich@xxxxxxxxxx> wrote: > >> While agreeing from a technical perspective, customer perspective on >> our products is different: Whenever something like proper UP >> (no-APIC) >> support breaks in our products, we almost immediately get reports of >> this, since there will always be someone running Xen e.g. on an old >> laptop (no matter whether Xen is meant to be run there). >> >> Less frequent for ACPI, but quite recently we had a report there too >> (and >> I'm under the impression that no-ACPI support has been broken for >> quite >> a while) - luckily, a BIOS update fixed the issue for them, so I >> didn't have to look into the issue in more detail. >> >> Otoh, if we really wanted to switch over to APIC and ACPI being a >> requirement, I wouldn't mind that step - it just should be that it's >> clear whether this is intended to work. And if it isn't, quite a bit >> of code should be eliminated/cleaned up. >> >> Jan >> >>>>> "Zhang, Xiantao" <xiantao.zhang@xxxxxxxxx> 12.09.09 03:58 >>> >> Jan, >> Frankly speaking, we haven't done the testings which can cover >> non-APIC case. Does anybody really care about such case now ? I >> can't figure out the reason why modern system doesn't leverage apic. >> If non-APIC case is necessary, maybe we need to fix it. As I know, >> Xen is becoming more and more dependent on the components (APIC, >> ACPI....), so non-APIC or non-ACPI cases maybe becoming less and >> less important. >> Xiantao >> >> Jan Beulich wrote: >>> Using c/s 20189, I can't boot my (only) system without APIC >>> anymore. I didn't have time to look into the issue in more detail >>> so far, but since it seems likely that this is connected to the >>> recent per-CPU-IRQ-vector changes, I wanted to ask whether these >>> had been tested on APIC-less systems. >>> >>> Thanks, Jan >> >> >> >> _______________________________________________ >> Xen-devel mailing list >> Xen-devel@xxxxxxxxxxxxxxxxxxx >> http://lists.xensource.com/xen-devel _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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